The former 'Loose Women' legend details how she was left burnt and bruised after an embarrassing fail during an nude exercise session.

Speaking on ITV2's 'Safeword', she reveals: “It was last summer and I thought it’s about time I did a bit of fitness. I hate the gym so I got this treadmill and put it in an alcove in a room at home. I started running and you don’t half get hot, don’t you, when you’re running? Me being me I got off and thought, ‘I’ll just take my kit off and get back on again’.”

ITV

Carol Vorderman recounts an embarrassing fail on 'Safeword'

Admitting she was naked, Carol continues: “I forgot that it was still running, got back on, I went like that, the belt was still going and I burned here [pointing to her bum], here [pointing to her legs] and all down my back. It was awful.”

Watch her admission in the video above...

While we already knew that Carol was game for a laugh, she proves to be a good sport on the outrageous celeb panel show, which sees guests rewarded points for the more embarrassment they can take.

The initial tweet reads: “Hey guys, just want to let you know, there might be a story in tomorrow’s papers about me #regretsfrommyyouth #vhs #betamax”.

Wanting to win points, Carol initially allows the tweet to be posted, with the next tweet posted on her behalf reading: “Is it illegal for someone to release private videos of you from your past? #robkardashian #hairypast #bringbackbush”.

Another adds: “I want to release it before the papers do. You’re going to see my ‘Consonant Vowel Consonant Consonant’ #Twofromthetoponefromthebottom

After she receives messages from concerned friends advising her to delete the tweets, Carol is then threatened with an extreme tweet discussing a sex act, but finally uses her safe word to prevent things from going any further.

Safeword is on Thursdays at 10pm on ITV2.

Carol Vorderman

Carol Vorderman

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Cirque Du Soleil Kooza: London European Premiere Outside Arrival

Carol Vorderman arrives for the European Premiere of the latest Cirque Du Soleil show Kooza, at the Royal Albert Hall in central London, Tuesday, Jan. 8, 2013. (Photo by Joel Ryan/Invision/AP)